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Of course
(lemmy.world)
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this post was submitted on 21 May 2024
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Yeah, it's intentionally obscure. Basically, x86 assembly code is a way of telling a processor what to calculate, at a very low level.
So, it's similar to programming languages, but those actually get translated into x86 assembly code, before it's told to the processor. ("x86" is a certain processor architecture. Others exist, too, most prominently "ARM".)
But yeah, even with me knowing that much, I'd need to guess what
retandint3might do.Everyone knows
jmpandnop, though, of course. ๐Of course
That's the exact same thing. x86 Assembly Code isn't that hard(to know what it is, understanding it is something different),but I havent heard of the other stuff.
return from subroutine, int3 would be something relating to interrupts off the top of my head.Int3 is a special single-byte (CC, if I recall correctly) form of the INT instruction (which is CD imm8, I think) to raise an interrupt. Interrupt #3 is the debugging interrupt, so by overwriting any instruction with CC, you place a breakpoint there.